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Mattel[1] is a cute pink fish from the Amiy Kingdom who (excluding a cameo in Super Princess Peach) makes her debut in Densetsu no Starfy 4, in which she seeks Starfy's help in saving her homeland from Degil and evil invaders. She is a maid who is one of the four sages, who becomes the princess of the Amiy Kingdom at the end of the game. Starfy has a strong crush on her.
At the end of the first ending, Prince Coral reveals that Mattel is his fiancee, leaving both Starfy and Starly feeling shattered. They turn to stone with their mouths wide open, but this was probably only put in by the developers to create a comedic effect and the effect may not have been permanent.
The fact that Mattel is already with someone leaves Starfy feeling depressed in his room after the event. Starly seemed to accept it even though this special person is Coral, and Moe failed to make Starfy happy again, however, Starfy accepts it in time and continues his adventure with Starly and Moe to collect all the Answers Cards and truly defeat Degil. After Degil is defeated, Coral and Mattel get married and Mattel thanks everyone, in particular Starfy for his help in saving the Amiy Kingdom.
In an Easter egg, Mattel can be seen as a design on the Starfish's sleeping mat in Super Princess Peach. Possibly due to an oversight, this occurred even before the release of Densetsu no Starfy 4.[2]
Super Smash Bros. Brawl
Mattel (under her japanese name "Materu") appears as a collectable sticker that boost the fighter's freezing attacks by 7 points.
Super Smash Bros. Ultimate
Mattel makes an appearance in Super Smash Bros. Ultimate, as a Spirit.[3]. She is a novice support spirit that boost the fighter's resistance on water and freezing attacks. Her battle is on the large island section of the Delfino Plaza stage against a red Kirby with Starfy appearing as a hostile assist trophy.
This is additionally the first time the Densetsu no Starfy R romanization of her name has been used in an official video game.
Mattel's appearance from the cover of Densetsu no Starfy 4.
A card that reads "Mattel" on it. From Densetsu no Starfy R, chapter 12.
